\documentclass[a4paper,12pt]{article}
\usepackage[T2A]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[english,russian]{babel}
\usepackage{amssymb}
\usepackage{amsfonts}
\usepackage{amsmath}
\usepackage{mathtext}
%\usepackage{cite}
%\usepackage{enumerate}
%\usepackage{float}
\usepackage{graphicx}
%\usepackage{graphics}
%\usepackage{mathrsfs} 
%\usepackage{wrapfig}
\usepackage{subcaption}
\usepackage{listings}
\usepackage{color}
\usepackage[usenames,dvipsnames]{xcolor}

\include{block-header}
\include{lst_init}

\usepackage[left=2cm,right=2cm, top=2cm,bottom=1.5cm,bindingoffset=0cm]{geometry}

  \setlength{\unitlength}{1.2cm}
\setcounter{tocdepth}{3}

\title{Расчетно-графическая работа \textnumero 1}
\author{Стратонников А.А}

\begin{document}

\include{title}
\tableofcontents
\include{task}
\include{block}
\include{code1}

\include{task2}
%\include{block2}
%\include{code2}

\include{task_b}
\include{block_b}
\include{code3}
\end{document}
